Phonograph-needle sharpener



A. W. WAHLIN.

FHONOGRAPH NEEDLE SHARPENER.

APPLICATION FILED APR. 30. 1920.

Patented 1130.27, 1921.

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A. w. wAHLlN.

PHONOGRAPH NEEDLE SHARPENER. APPLICATION man APH. so. 1920.

i 1,401,213, Patented nw. 27, 1921.

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slot il and is secured to an arm or lever 17. One end of the lever 17 is pivotally mounted on the wall 18. A gear segment 18 is integrally formed on the pivoted end of the lever 17, and a knurled linger piece-19 j is formed on the outer end of said lever.

. VSecured by rivets or other suitable means onV the base plate 9 is a vertical stationary cutter plate 2O provided with a tapered V- shaped needle notch 21 adapted to receive the playing end of a fiber needle 5. Pivotally mounted on the stationary cutter plate 20, is a rotatable cutter disk 22 cut away to aiford a lrnife edge 23. A gear segment 24: is integrally formed on the rotatable cutter .disk 22 and is in mesh with the lever gear Segment 18. Secured on the movable cutter disk 22 is aplate 25 provided with a plurality of outwardly projecting prongs 26, adapted to removably hold a cylindrical boX or casing 27 in position to receive the cut off ends of the fiber needles. A stop or lug 28 is integrally formed on the plate 25 and projects inwardly toward the stationary cutter plate 2O and aords a means for gaging the amount of material to be cut oli of the end of a needle.

The operation is as follows:

The fiber needle sharpener Shown in F ig. 3 is adapted primarily to be used to cut or sharpen liber needlesas they are held in position in the needle holder l of a phonograph reproducer mechanism 3. The sharpener is placed upon the middle portion of the record 8 so that the upper end of the phonograph turntable shaft 6 projects through the slot 12 of the base plate eXtensionV 1l. The phonograph tone arm 2 is .swung to the center of the record and moved adjusted on the record with the shaft 6 acting as a guide for the Sharpener. The Sharpener is moved toward the needle 5 until the playing end of the needle contacts the stop 28.Y 'llo sharpen the needle the lever 17 is depressed against the action of the Spring 16. With the depression of the lever the lever gear segment 18 actuates the gear segment 211 and thereby causes the movable cutter dislr 22 to rotate. i/Vith the rotation of the cutter disk 22 the lrnife edge 23 is moved to co-act with the stationary cutter 2O to cut off the projecting end of the needle 5 to sharpen the same. The cut ofi end of the needle falls into the'box or casing 27, which when filled may be removed from between the prongs 26 and emptied. Upon release of the lever 17, the spring 16 acts automatically to return the lever 17 to its raised normal position.

'It will of course be understood that the VSharpener may be placed directly on the turntable 7 with the shaft 6 projecting upwardly through the slot 12. The Sharpener may be adjusted or braced against the shaft 6 to receive and sharpen the playing end of a berv needle withoutrequiring the needle to be removed from its holder. If desired the Sharpener may be used independently of the phonograph. The opening 10 in the base plate 9 affords a means for holding the Sharpener in place when the same is to'be used.

I am aware that numerous details of construction may be varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent Ygranted otherwise than necessitated by the prior art.

I claim as my invention: Y

1. The combination with a phonograph, of a needle Sharpener adapted to be adjustably engaged with the phonograph turntable shaft to permit sharpening of the playing end of a needle held in position by the phonograph needle holder.

2. The combination with a phonograph and the reproducer and turntable thereof, of a. needle Sharpener adjustably'engaged on said turntable to permit sharpening of needles held by the'reproducer.

3. The combination with a phonograph reproducer, turntable and turntable shaft, of a slotted needle Sharpener on said turntable and slidably adjustable on said shaft which projects through the Slot of the sharpener, said Sharpener adapted to be slidably adjusted with respect to the reproducer to receive the playing end of a needle held by the reproducer to permit sharpening of the needle without removing the Same from the reproducer.

4. The combination with a phonograph, of a liber needle Sharpener adapted to be engaged with the projecting end of the phonograph turntable Shaft, Said Sharpener adapted to be slidably adjusted diametrically of said Shaft to receive and cut off the playing end of Va fiber needle held'by the kand a casing removably engaged by said prongs for receiving the parts cut olf of a needle when sharpened.

6. A phonograph needle Sharpener embracing a Ybase, a notched stationary cutter v thereon, a movable cutter pivotally mounted on Said stationary cutter, a gear segmentl in'- teg-rally formed thereon, a lever pvotally mounted on said base, :t spring,` for holding` the lever in normal operttingzrposition, a gear segment integrally formed on said lever and in mesh with the movable cutter gear segment, a plate secured on said mow able cutter, zt needle stop formed thereon, prongs formed on said plate, and at chip box removably held in place on said plate by said prongs to receive the cnt off parts of 10 needles.

In testimony whereof I have hereunto subscribed my name in the presence of twb subscribing` Witnesses.

AXEL W. VVAHLIN. l/Vitnesses:

EARL M. HARDINE, FRED E. PAESLER. 

